102211220999 has 2 divisors, whose sum is σ = 102211221000. Its totient is φ = 102211220998.

The previous prime is 102211220989. The next prime is 102211221011. The reversal of 102211220999 is 999022112201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102211220999 - 2¹² = 102211216903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102211220939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105610499 + 51105610500.

It is an arithmetic number, because the mean of its divisors is an integer number (51105610500).

Almost surely, 2^102211220999 is an apocalyptic number.

102211220999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211220999 is an equidigital number, since it uses as much as digits as its factorization.

102211220999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 102211220999 in words is "one hundred two billion, two hundred eleven million, two hundred twenty thousand, nine hundred ninety-nine".